Positioned for minimum wind resistance and easy access. These bags are ideal for triathletes or riders wanting to keep energy food or other small items close at hand.Three models: mesh cover, rain cover or fully waterproof DryBagInternal compartments keep items separatedSimple velcro strap fixing Mesh Cover:-Small: 14x4x10.2cm, 0.6L, 59gLarge: 18x10.2x4cm, 0.72L, 72gAll-Weather:-Small: 14x4x10.2cm, 0.6L, 65gLarge: 18x10.2x4cm, 0.72L, 80gDryBag:-Small: 14.5x4.7x12.8cm, 0.6L, 65gLarge: 18x12.8x4.7cm, 0.72L, 120g